What is Ribosome Profiling?
Ribosome profiling is a method based on deep sequencing of ribosome-protected mRNA fragments. Purification and sequencing of these fragments provides a “snapshot” of all the ribosomes active in a cell at a specific time point. This information can determine which proteins are being actively translated in a cell.
Ribosome profiling analysis enables systematic monitoring of cellular translation processes and prediction of protein abundance. Determining what regions of a message are being translated can help define the proteome of complex organisms. In combination with massively parallel Illumina high-throughput sequencing, ribosome profiling allows detailed and accurate in vivo analysis of protein production.
Advantages of Ribosome Profiling
Identify transcripts undergoing translation for visibility to an important aspect of gene regulation.
- Investigate translational control and measure gene expression
- Identify translation start sites
- Determine rate of protein synthesis
- Predict protein abundance
Generating Sequencing Libraries for Ribosome Profiling
Ribosome profiling uses size-exclusion chromatography. This method streamlines the steps to convert ribosome-protected RNA fragments into libraries compatible with sequencing on Illumina instruments. It is a simple, rapid, and scalable method that does not require special equipment. In contrast, other methods to isolate polysomes and monosomes rely on several hours of ultracentrifugation using either a sucrose gradient or a cushion.
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Learn MoreAlternative to TruSeq Ribo Profile
The TruSeq Ribo Profile kits, which have been discontinued, are based on the following published protocol for ribosome profiling: Ingolia NT, Brar GA, Rouskin S, McGeachy AM, Weissman JS. The ribosome profiling strategy for monitoring translation in vivo by deep sequencing of ribosome-protected mRNA fragments. Nat Protoc. 2012;7(8);1534-1550. This publication provides detailed information about the reagents required for the assay and where they can be purchased.
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Related Solutions
Cancer Research: Gene Deregulation
Ribosome profiling can provide critical insight into gene deregulation in cancer. This method, as well as gene expression analysis, can help researchers gain insight into functional changes occurring during cancer development. Learn more about cancer gene expression studies.
Complex Disease Research: Translational Regulation
Ribosome profiling further bridges the gap between genomics/transcriptomics and proteomics, providing visibility to an important layer of post-transcriptional regulation and potential new insights into the mechanisms driving complex diseases. Learn more about complex disease genomics.
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Additional Resources
RNA-Seq with the NextSeq 550 System
A flexible, cost-effective solution for RNA sequencing provides a deeper understanding of biology.
RNA-Seq Data Analysis
User-friendly software tools simplify RNA-Seq data analysis for biologists, regardless of bioinformatics experience.
Ribosome Profiling Enables Full Translation Analysis
A direct method for analyzing gene expression at the protein synthesis level.
*Data calculations on file. Illumina, Inc., 2015